GetEntityClassname should handle the case where the world entity has not been created yet.
Fix usage of `class` keyword in some includes.
Merge pull request #70 from VoiDeD/classname-no-world-entity

GetEntityClassname should handle the case where the world entity has not been created yet (r=psychonic).
Merge pull request #78 from VoiDeD/class-keyword

Fix usage of `class` keyword in some includes.
Merge pull request #73 from alliedmodders/nullable

Add nullable types and tighten up some new type system semantics.
Merge branch 'master' into svals
Get postdec/postinc working.